Hi folks,
a few days ago (unfortunately bevor I found this great forum), I updated my European F900BT the following way:
- Firmware: 2.05 => 2.07
- Bluetooth: 2.90 => 3.30
The next day, I noticed my Bluetooth didn't work anymore. The software upgrade page told me "not found" - and the button for updating the BT-software was disabled.
On my search for a solution, I stumbled over this forum - and successfully downgraded the WINCE-Image like described in some other topics here.
After this downgrade, the BT-upgrade-page didn't even show me "not found" - everything was disabled now and BT still not working, of course.
On my search I started to fool the device by changing the SYS.TXT in the IGO8 folder. Result of my tests:
- if I put "UC" (=US version) in the SYS.TXT, then my Bluetooth works as it should. If I put "EW" at the end of the model type in the SYS.TXT, bluetooth isnt's working like described above.
- BUT: If I fool my device by using a "UC" in the SYS.TXT, then my TMC doesn't work anymore!
That means:
EW = TMC works, Bluetooth doesn't work
UC = TMC doesn't work, Bluetooth works
Have you guys any ideas? I would be glad, if I could downgrade from BT3.30 to BT2.90, because I think the problem is caused by the BT3.30 version. But I didn't find a hint here, how to downgrade the Bluetooth software...
Thanks,
Robert